Base4 Application Server

• Define and generate a fully functional .NET datalayer from a simple XML schema


• Support for inter-schema references, to encourage data-layer sharing and re-use


• Support for schemas that wrap legacy databases


• Support for schemas that extend legacy databases


• Support for Object SQL like queries, and for deep pre-loading of objects using what is called ObjectScoping


• Application Server supports addins to respond to lifecycle events (some examples are BeforeSave, AfterQuery etc)


• A core schema with builtin support for Files, Users etc, and a framework for supporting Metadata promotion and demotion to and from files.


• All generated data-layers provide extensive support for XML including XML persistence, including object Readers and Writers that work directly with XML


• Automatic .NET Remoting configuration and custom type Serialization management

• A WebDAV HttpModule for IIS that exposes Base4 files and images to WebDAV clients, allowing files in Base4 to be mounted as a network drive in Microsoft Windows


• WSE2.0 version of remoting APIs to allow clients to connect via Webservice calls to the Server


• Support for embedded objects once SQL 2005 is available.

using Base4.Storage;

StorageContext.SetDefault("tcp://Server:@localhost:999/default-store");

ItemBase b = StorageContext.FindOne(ID); // same as StorageContext.Default.FindOne( … )

if (b != null)

{

	// ID is unique across all object in the server. Every new object is assigned a new ID.

	b.ACL = “Updated”;

	b.Save(); // Because a field has changed (ACL) Base4 will update Version and Modified automatically

}

b = StorageContext.FindOne(ID); // Same as ItemContext.FindOne( … )

User user = b as User;

if (user != null)

{

	// User has a Username.

	//Do Work

}

• Base4.NET